The formulation of drip irrigation belt containing HDPE and micro irrigation belt containing HDPE.

摘要

N. provides a formula; oacute; n. Formaci amp; oacute; n. Formaci amp; oacute; n. contains a compound; amp; oacute; n. contains a high density polyethylene component, which contains (I) a high molecular weight component, including a COPOL amp; Iacute; pure ethylene / a-oil, the density of the high molecular weight component 9.924-9.30g/ml and UN amp; Iacute; Fusi amp index; oacute; high loading n (I21) 0.3-0.9g/10min;Y (II) low molecular weight component, including a pol amp; Iacute; monomer vinyl material, consisting of a homogeneous acrylonitrile amp; Iacute; ethylene monomer and a COPOL amp; Iacute; ethylene monomer / a-oleline. High density polyethylene compounds (a) density 0.0950-0.966 g / C C; (b) UN amp; Iacute; Fusi amp index; oacute; high load factor (I21) 15-28 g / 10 min; (c) I21 / I2 at least 85 min; (d) tracci amp failure time; oacute; constant value with L amp abrasives; ute; actico: 35%. 1.1.2.2.2.2.2.2.2.2.2.2.2.2.2 M amp; Aacute; s 90 hours; and (E) est amp; eacute; s environmental (REC) F0 values.According to ASTM d1693 condic amp; oacute; n b (100% Igepal), the,a. From M amp; Aacute; s 2000 hours; P